FSA Orbit C-40-ACB Integrated Headset, 1-1/8"-1.5" Black
<ul><LI>1-1/8" 45/45 ACB upper - 42mm ID <LI>1.5" 36/45 ACB lower - 52mm ID <LI>Compatible with carbon or alloy head tubes <LI>For 1-1/8" to 1.5" tapered steerers <LI>16.3mm stack height <LI>74.2g</ul>